54. 

 LOPHYRUS PINI. 



Order Hymenoptera. Fam. TentliredinidEe LaL, Leach. 



Type of the Genus Tenthredo Pini Linn. 

 LoPHYRUS Lat., Leach. Tenthredo Linn., Fab. Hylotoma Fab. 

 Pteronus Jtir. 



AntenncB inserted near the middle of the face, somewhat approxi- 

 mating, not longer than the thorax, pubescent ; male with about 

 23 joints, all of which are bipectinated, except the fh-st 2 and ter- 

 minal joints (f. 1.) ; female thickest in the middle, slightly serrated 

 internally, having from 16 to 18 joints (1. a). 

 Labnim nearly quadrate narrowed anteriorly, ciliated (2.) 

 Mandibles, one tridentate (3.), the other with a small tooth only. 

 MaxillcB with 2 long lobes, the inferior one somewhat acuminate, 

 membranaceous, as long as the external one, which is rounded and 

 hairy : Palpi long sbghtly hairy 6-jointed, 1st and 2nd joints 

 short, the following long, the 2 last being more slender (4.) 

 Menimn quadrate, slightly dilated anteriorly (5. a.) : Palpi haiiy, 

 4-jointed, of nearly equal length, gradually increasing in breadth 

 to the last which is somewhat ovate acuminate (b.) : Lip tripar- 

 tite, the lobes of nearly equal size (c) 

 Head in the males very broad. Ocelli nearly in a transverse line. Thorax 

 in the males large. Abdomen sessile, somewhat cylindric in the 

 males, depressed and ovate in the females. 0\aduct 7iot exserted, com- 

 posed of 2 lamella which are serrated. Superior wings ?cith 1 mar- 

 (jinal and 4 sub-marginal cells, the nerve dividing the \st and 'ind cells 

 being imperfect. Tibise icith spurs. Tarsi ^-jointed, first 4 joints 

 with membranaceous appendages, \st joint very robust, the following 

 gradually decreasing in size to the apex, which is terminated by claws 

 slightly unidentate (8. a foreleg). 

 Larva with Q pectoral and 16 membranaceous feet. 



Pini mas. Linn. Syst. Nat. 2. 922. 14^.— Fab. Fnt. Syst. v. 2. p. 112. 

 n. 28.— /m. T. dorsata Fab. v. 2. p. 111. n. 26. 

 Male black, head and thorax minutely punctured. Palpi, tibiae 

 and tarsi pale ochraceous. Stigma large, furruginous. Wings 

 slightly discoloured with fuscous. Antenna? with 22 joints. Female 

 larger than the male, pale ochraceous. Head, antennae (except- 

 ing the 1st joint) a spot before the centre and a lunulated mark 

 on each side the thorax black, margin to 1st segment 4th and 3 

 following segments, excepting the sides, a mark on the centre of 

 the 8th and the apex of the abdomen also black. Legs pale varied 

 with'fuscous. Wings pale ochraceous, stigma large ferruginous. 

 Antennae with 1 8 joints : Some specimens have more and others 

 less black. 



hi the Cabinet of the British Museum. 



